SWD program download problem of PCB based on nRF52840https://devzone.nordicsemi.com/f/nordic-q-a/68091/swd-program-download-problem-of-pcb-based-on-nrf52840I desgined a PCB based on the nRF52840 module and led out the SWDIO and SWDCLK pins to Micro USB. I used jlink v9 and connected three pins in SWD download mode. The SWDIO and SWDCLK and the GND pins are connected to USB Micro port. The nRF52840 moduleen-USTelligent Community 13Mon, 09 Nov 2020 14:30:29 GMTRE: SWD program download problem of PCB based on nRF52840https://devzone.nordicsemi.com/thread/279047?ContentTypeID=1Mon, 09 Nov 2020 14:30:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:caac3041-cc87-4197-b01e-e94472132dd1haakonsh<p>What is connected to the USB connector?<br />Is the pin mapping correct?&nbsp;<br /><br />Have you tried&nbsp;using nrfjprog?&nbsp;<a title="Programming nRF5x SoCs with nrfjprog" href="https://infocenter.nordicsemi.com/topic/ug_nrf5x_cltools/UG/cltools/nrf5x_nrfjprogexe.html?cp=9_1_3">Programming nRF5x SoCs with nrfjprog</a>&nbsp;</p><div style="clear:both;"></div>